 They also recorded the vertical profile for some of their measurements.Another research, recorded and estimated the tidal flushing time of the greater Port Shelter area which their tidal stations were deployed in the Port Shelter proper, as well as in Rocky Harbour, Hebe Haven, Inner Port Shelter and Outer Port Shelter.Such as a station at Leung Shuen Wan (; or known as High Island) and in Po Toi O.